TABLE 1.

Comparison of high blood pressure prevalence according to different definitions in Chinese children and adolescents

		Prevalence (95% CI), %
Variables	N	Fourth Report	CPG	Differencea	P†
Sample (6–12 years)
Sex
Boys	17 912	10.9 (10.5–11.4)	18.1 (17.5–18.7)	7.2 (6.4–7.9)	<0.001
Girls	16 550	10.7 (10.2–11.2)	15.3 (14.7–15.8)	4.6 (3.8–5.3)	<0.001
BMI group
Thinness	3598	4.8 (4.1–5.6)	7.5 (6.7–8.4)	2.7 (1.6–3.8)	<0.001
Normal	22 544	9.1 (8.7–9.5)	13.9 (13.5–14.4)	4.8 (4.2–5.4)	<0.001
Overweight	5647	15.5 (14.6–16.5)	24.6 (23.5–25.8)	9.1 (7.6–10.6)	<0.001
Obesity	2673	23.5 (21.9–25.1)	36.6 (34.8–38.5)	13.1 (10.7–15.6)	<0.001
Height group
High-height group	1658	13.9 (12.2–15.6)	27.5 (25.3–29.9)	13.6 (10.9–16.5)	<0.001
Low-height group	271	11.8 (8.2–16.3)	12.7 (8.9–17.5)	0.9 (−4.7 to 6.5)	0.756
Total	34 462	10.8 (10.5–11.2)	16.7 (16.4–17.1)	5.9 (5.4–6.4)	<0.001
Sample (13–17 years)
Sex
Boys	7646	8.0 (7.4–8.6)	11.4 (10.7–12.2)	3.4 (2.5––4.4)	<0.001
Girls	8228	4.8 (4.3–5.3)	4.7 (4.2–5.2)	−0.1 (−0.7–0.6)	0.776
BMI group
Thinness	1762	2.3 (1.6–3.1)	2.8 (2.1–3.7)	0.5 (−0.5–1.6)	0.279
Normal	11 148	4.7 (4.3–5.1)	5.8 (5.3–6.2)	1.1 (0.5–1.7)	<0.001
Overweight	2184	11.1 (9.8–12.5)	13.8 (12.4–15.4)	2.7 (0.7–4.7)	0.007
Obesity	780	25.5 (22.5–28.7)	34.0 (30.6–37.4)	8.5 (3.9–13.0)	<0.001
Height group
High-height group	142	12.0 (7.1–18.5)	26.1 (19.0–34.2)	14.1 (5.0–23.2)	0.002
Low-height group	396	4.8 (2.9–7.4)	3.4 (1.8–5.8)	−1.4 (−4.2–1.4)	0.333
Total	15 874	6.3 (6.0–6.7)	7.9 (7.5–8.4)	1.6 (1.0–2.2)	<0.001

CPG, Clinical Practice Guidelines; HBP, high blood pressure.

^aThe difference in HBP prevalence.

^†Tested by Cochran's Q test.